EP4045360A1 - Acoustic warning device for a vehicle steering wheel - Google Patents

Acoustic warning device for a vehicle steering wheel

Info

Publication number
EP4045360A1
EP4045360A1 EP20789978.2A EP20789978A EP4045360A1 EP 4045360 A1 EP4045360 A1 EP 4045360A1 EP 20789978 A EP20789978 A EP 20789978A EP 4045360 A1 EP4045360 A1 EP 4045360A1
Authority
EP
European Patent Office
Prior art keywords
contacts
switch
control part
switches
isolated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20789978.2A
Other languages
German (de)
French (fr)
Other versions
EP4045360B1 (en
Inventor
Matthis BARRITAULT
Thomas LETIERCE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Autoliv Development AB filed Critical Autoliv Development AB
Publication of EP4045360A1 publication Critical patent/EP4045360A1/en
Application granted granted Critical
Publication of EP4045360B1 publication Critical patent/EP4045360B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/001—Switches therefor
    • B60Q5/003—Switches therefor mounted on the steering wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling

Definitions

  • the present invention relates generally to the field of motor vehicle horns, and in particular, the invention relates to the field of horns embedded in the steering wheel of the vehicle.
  • An object of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to provide an audible warning device which comprises an effective control device for rapidly detecting a movement of a control part to be actuated by a user, and which however has a simple assembly process, with a limited number of connections to be made.
  • a first aspect of the invention relates to a warning device.
  • motor vehicle sound weaver or horn control device, comprising:
  • At least one of the switches comprises two contacts isolated from one another and arranged on one of the base part - control part assembly, and a contact bridge arranged on the other of the base part - control part assembly, the contact bridge being arranged to connect the two contacts when closing said at least one switch.
  • the switches are connected in series, which provides immediate detection of a change of state (the total circuit is open when only one of the switches is open).
  • at least one of the switches comprises a bridge on board one of the base part - control part assembly and two on-board contacts on the other of the base part - control part assembly, the contacts being arranged to be connected / disconnected by the bridge, which, in conjunction with the series connection, eliminates at least one connection to be made by the assembly operator (since by construction, the circuit has switches in series).
  • the electrical detection circuit can include three switches.
  • the detection is effective, because three switches distributed on the steering wheel make it possible to detect any movement of the control part, and due to the series architecture, the number of connections to be made by the assembly operator is not increased. , namely, only two terminals connections are required.
  • each switch can comprise two contacts isolated from one another on one of the base part - control part assembly, and a contact bridge on the other of the control part assembly.
  • base - control part the contact bridge being arranged to connect the two contacts when closing said at least one switch.
  • the electrical detection circuit can only comprise two terminals for connection to an on-board electrical network of the vehicle.
  • a manufacturing operator only has two manual connections to make when mounting the handwheel, even if there are multiple control part movement detection switches.
  • each switch can have a contact connected in series with a contact of an adjacent switch of the control detection circuit.
  • said two contacts isolated from one another are arranged on the base part, and said contact bridge is arranged on the control part.
  • the contacts of the switch (s) are integral with the base part, and are therefore static with respect to the latter. Consequently, only the contact bridge (s) is (are) integral with the control part and movable. This minimizes the vibrations and / or movements of the contacts and of the strands or portions of the circuit which connect them, so that reliability is improved (risks of mechanical stress, interference, friction, noise, etc. reduced).
  • control detection circuit can comprise a branch composed of circuit strands, with at least two adjacent circuit strands which can each include at one end one of the contacts of the same switch, the isolated contacts one the other can be arranged opposite the contact bridge of said switch.
  • the branch is therefore a single component which comprises several strands of circuits which connect each switch in series, and it suffices to provide two connection terminals to allow two manual connections.
  • the system is very simple to manufacture, but per- requires multiple switches to provide sensitive and efficient control sensing.
  • the branch in question is a portion of the control detection electric circuit and can be defined as follows: between two connection points (or two nodes) of the electric circuit, the branch comprises several conductors (strands of circuit or conductor) which connect in pairs a contact of one switch to a contact of another switch.
  • the branch can be formed from a stamped metal sheet or a bent metal wire.
  • the branch can form a connecting hoop or hoop, and the connecting hoop or hoop can form an independent part to be fixed on the steering wheel.
  • the hoop or the connection hoop can embed all the contacts of each of the switches and the circuit strands which connect them, to form a single piece that is easy to handle for the assembly operators. .
  • the branch can comprise an insulating material forming a substrate supporting the contacts insulated from one another arranged opposite the contact bridge of said switch.
  • the branch can comprise at least one insulating shell partially overmolded around the contacts isolated from one another arranged opposite the contact bridge of said switch.
  • the audible warning device can comprise at least one reference protuberance
  • the insulating shell can comprise elastic retaining or interlocking means, arranged to be fixed elastically on the reference protuberance.
  • assembly is quick and simple, because the reference protuberance provides indexing on or around which the operator threads or fits the insulating shell.
  • the protuberance can be a screw head, in particular a shouldered screw head which also provides a guide portion of the control part.
  • the audible warning device may include several reference protuberances, and the insulating shell may comprise take elastic retaining or interlocking means, arranged to be fixed elastically on each of the reference protuberances, and preferably in the same mounting direction.
  • each insulating shell is C-shaped or with an open neck typically with an opening to fit on each reference protuberance, and the opening of each fixing interface is directed into the same direction. This allows one-touch assembly without distorting the hoop.
  • the audible warning device may comprise at least one unit for guiding the control part, the guiding unit comprising at least one mechanical stop to define the rest position, and:
  • the sound warning device can include as many guide units as there are switches, and for each switch:
  • the guidance of the control part is precise, since several guide units are provided, and the detection of the control is very effective, because a switch is provided at each guide unit.
  • the other of the set of two isolated contacts - contact bridge integral with the mechanical stop can be electrically isolated from the guide unit.
  • a second aspect of the invention relates to a vehicle steering wheel comprising an audible warning device according to the first aspect.
  • the vehicle steering wheel can include a security module fixed to the control part.
  • a third aspect of the invention relates to a motor vehicle comprising a vehicle steering wheel according to the second aspect.
  • FIG. 1 is a perspective view of part of a horn device, or part of a horn control device, mounted on a vehicle steering wheel;
  • FIG. 2 shows a connection hoop forming part of the horn device of FIG. 1,
  • FIG. 3 shows the connection hoop of Figure 2, to show interaction with components of Figure 1;
  • FIG. 4 shows a section of the horn device of FIG. 1;
  • FIG. 5 shows a perspective view of an alternative of a part of an audible warning device, mounted on a vehicle steering wheel;
  • FIG. 6 shows a connection hoop forming part of the alternative horn device of figure 5
  • FIG. 7 shows a section of the horn device of FIG. 5;
  • FIG. 8 shows an alternative implementation of the connection hoop of Figure 2.
  • Figure 1 shows a perspective view of part of a horn device comprising three switches 10 formed at three guide units of a control part 25 mobile and mounted on a vehicle steering wheel comprising in particular a frame composed of a hub (forming a base part 33), branches 32 and a rim 31.
  • the control part 25 is a plate which typically receives a safety module (an airbag or airbag), and which is movably mounted on the hub of the steering wheel frame. Conventionally, the part of control 25 is movable between a rest position ( Figure 1) and a depressed position; when the driver wants to sound the horn.
  • a safety module an airbag or airbag
  • the horn device comprises three switches 10 normally closed (when the control part 25 is in the rest position), and which open when moving to the depressed position.
  • the detection is rapid (the change of state of the switches 10 occurs as soon as the control part 25 leaves the rest position).
  • each switch 10 comprises two contacts 11, isolated from one another.
  • a contact bridge 12 (visible in FIG. 3 and especially in FIG. 4) arranged to connect the two contacts 11 together, when the switch 10 is closed. Consequently, it is possible to provide a connection hoop 15 detailed in FIGS. 2 and 3, which connects two by two the contacts 11 of two switches 10, and which comprises the only two connection terminals 16 to be connected manually during assembly. of the vehicle steering wheel.
  • FIG. 3 shows in dotted lines the silhouette of the contact bridge 12 of each switch 10, and the areas of electrical contact in hatched lines, when the switches 10 are closed (control part 25 therefore in the rest position).
  • connection hoop 15 therefore comprises the contacts 11 of each switch 10, and there is also provided a collar 13 at the level of the contacts 11 and clearly visible in FIG. 4 (which represents a section or level of a guide unit of the control part 25), which fits elastically on the head 21 T of a guide screw 21 screwed into the hub of the frame.
  • connection hoop 15 is easy on the steering wheel.
  • connection hoop is fixedly mounted on the hub, it therefore does not move during the horn controls, and it is less exposed to vibrations, which limits the mechanical / vibratory stresses and noise risks.
  • the service life is improved.
  • only the contact bridges 12 are movable in this implementation, and no electric cable is therefore movable, which generally improves reliability (reduction of the risks of noise, friction, unwanted displacement. ..).
  • Figure 4 shows the detail of constructions of the guide units of the control part 25 which is movable.
  • a return spring 23 Around the shouldered guide screw 21, there is provided a return spring 23, a slide 22, and a damper 24 to guide the control part 25.
  • Figure 8 shows an alternative embodiment of the hoop 15 of Figure 2.
  • the hoop 215 of Figure 8 can quite replace the hoop 15 of Figure 2 in the assembly of Figure 1 or 4.
  • the difference to note is at the level of the shells which overmold the contacts of each switch.
  • each shell is C-shaped (as in Figure 2), but here Figure 8, the openings of each C are all oriented in the same mounting direction Dm. Simplified assembly is then possible.
  • the hoop 215 can be fixed on the shoulder screws in a single movement in the mounting direction Dm.
  • the mounting direction Dm is contained in a plane perpendicular to the stepped guide screws 21, but other orientations and mounting directions can be provided.
  • contacts 11 of the hoop 215 are not visible on FIG. 8, because they are arranged at the level of the lower surface of the insulating shells or overmoldings, which is hidden in this FIG. 8.
  • FIGS 5, 6 and 7 show an alternative embodiment.
  • a control part 125 is movably mounted on three guide units which each carry a switch 110.
  • each guide unit is here composed of a guide screw 121, which forms a slide for the control part 125, and a spring 123 is mounted between the hub (the base part 133) and the control part 125 to push it back into the rest position (upwards, as shown in FIG. 7).
  • each switch 110 comprises a fixed contact 111 integral with a head 121 T of a guide screw 121 and a movable contact 112 integral with the control part 125.
  • a connection hoop 115 visible in FIG. 6 connects the fixed contacts 111 in series, which makes it possible to provide only one connection terminal 116 for the three fixed contacts 111.
  • each movable contact has a connection terminal 116. In total in this embodiment, four connection terminals 116 are to be connected manually (instead of six if each switch had two connection terminals, as known in the prior art).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Steering Controls (AREA)
  • Push-Button Switches (AREA)

Abstract

An acoustic warning device for a motor vehicle, comprising: • a base part (33), • a mobile control part (25), • an electrical command detection circuit with at least two switches (10), wherein the switches (10) are normally closed switches (10), characterized: in that the two switches (10) are connected in series, in that at least one of the switches (10) comprises two contacts (11) that are isolated from one another.

Description

Description Description
Titre de l’invention : Dispositif d'avertisseur sonore de volant de véhiculeTitle of the invention: Vehicle steering wheel warning device
[0001] La présente invention concerne de manière générale le domaine des avertisseurs sonores de véhicule automobile, et en particulier, l'invention concerne le domaine des avertisseurs sonores embarqués dans le volant du véhicule. The present invention relates generally to the field of motor vehicle horns, and in particular, the invention relates to the field of horns embedded in the steering wheel of the vehicle.
[0002] Il est connu dans l’art antérieur de proposer des avertisseurs sonores avec des dispositifs de commande intégrés au volant, tels que celui décrit par exemple dans le document FR3063942, comprenant une pièce de commande mobile à pousser par un utilisateur pour déclencher le fonctionnement de l'avertisseur sonore. En contrepartie, ce système impose de prévoir de multiples branchements manuels avec le circuit de bord du véhicule pour alimenter le circuit électrique de commande d'avertisseur sonore comprenant un ou plusieurs interrupteurs. Typiquement, il faut prévoir au moins deux branchements manuels par interrupteur, car il y a deux broches de connexion par interrupteur à connecter au circuit de bord. It is known in the prior art to provide audible warning devices with control devices integrated into the steering wheel, such as that described for example in document FR3063942, comprising a movable control part to be pushed by a user to trigger the operation of the horn. In return, this system makes it necessary to provide multiple manual connections with the on-board circuit of the vehicle to supply the electric horn control circuit comprising one or more switches. Typically, at least two manual connections per switch must be provided, as there are two connection pins per switch to be connected to the on-board circuit.
[0003] Il est important toutefois de détecter le déplacement de la pièce de commande le plus rapidement possible, quelle que soit la partie poussée par le conducteur, ce qui peut conduire à la multiplication d'interrupteurs répartis sous toute la surface de la pièce de commande. Quelle que soit la partie poussée, un interrupteur à proximité détectera alors le mouvement et pourra déclencher le fonctionnement. Cependant, une telle mise en œuvre conduit encore à la multi plication de points de branchement manuels. Le procédé de fabrication requiert alors de nombreuses opérations manuelles de branchement, ce qui augmente le temps de fabrication, le nombre potentiel d'erreurs, et le coût total. However, it is important to detect the movement of the control part as quickly as possible, regardless of the part pushed by the driver, which can lead to the multiplication of switches distributed under the entire surface of the part. ordered. Whatever part is pushed, a nearby switch will then detect the movement and can trigger the operation. However, such an implementation still leads to the multiplication of manual branch points. The manufacturing process then requires numerous manual branching operations, which increases the manufacturing time, the potential number of errors, and the total cost.
[0004] Un but de la présente invention est de répondre aux inconvénients de l’art antérieur mentionnés ci-dessus et en particulier, tout d'abord, de proposer un dispositif d'avertisseur sonore qui comprend un dispositif de commande efficace pour détecter rapidement un mouvement d'une pièce de commande à actionner par un utilisateur, et qui présente toutefois un procédé d'assemblage simple, avec un nombre limité de branchements à effectuer. [0004] An object of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to provide an audible warning device which comprises an effective control device for rapidly detecting a movement of a control part to be actuated by a user, and which however has a simple assembly process, with a limited number of connections to be made.
[0005] Pour cela un premier aspect de l'invention concerne un dispositif d'aver- tisseur sonore de véhicule automobile (ou un dispositif de commande d'avertisseur sonore), comprenant : [0005] For this, a first aspect of the invention relates to a warning device. motor vehicle sound weaver (or horn control device), comprising:
• une pièce de base, • a basic part,
• une pièce de commande, mobile par rapport à la pièce de base, entre une position de repos et une position enfoncée, • a control part, movable relative to the base part, between a rest position and a depressed position,
• un circuit électrique de détection de commande avec au moins deux interrupteurs, chaque interrupteur étant agencé pour changer d'état lors du passage de la pièce de commande de la position de repos vers la position enfoncée, dans lequel les interrupteurs sont des interrupteurs normalement fermés lorsque la pièce de commande est en position de repos, caractérisé: • an electric control detection circuit with at least two switches, each switch being arranged to change state when the control part passes from the rest position to the depressed position, in which the switches are normally closed switches when the control part is in the rest position, characterized:
- en ce que lesdits au moins deux interrupteurs sont montés en série,- in that said at least two switches are connected in series,
- en ce qu'au moins un des interrupteurs comprend deux contacts isolés l'un de l'autre et agencés sur l'une de l'ensemble pièce de base - pièce de commande, et un pont de contact agencé sur l'autre de l'ensemble pièce de base - pièce de commande, le pont de contact étant agencé pour connecter les deux contacts lors de la fermeture dudit au moins un interrupteur. - in that at least one of the switches comprises two contacts isolated from one another and arranged on one of the base part - control part assembly, and a contact bridge arranged on the other of the base part - control part assembly, the contact bridge being arranged to connect the two contacts when closing said at least one switch.
[0006] Selon la mise en œuvre ci-dessus, les interrupteurs sont connectés en série, ce qui procure une détection immédiate d'un changement d'état (le circuit total est ouvert dès lors qu'un seul des interrupteurs est ouvert). De plus, au moins un des interrupteurs comprend un pont embarqué sur l'une de l'ensemble pièce de base - pièce de commande et deux contacts embarqués sur l'autre de l'ensemble pièce de base - pièce de commande, les contacts étant agencés pour être connecté/déconnectés par le pont, ce qui, en conjonction avec la con nexion en série, supprime au moins un branchement à effectuer par l’opérateur de montage (puisque par construction, le circuit présente des interrupteurs en série). According to the above implementation, the switches are connected in series, which provides immediate detection of a change of state (the total circuit is open when only one of the switches is open). In addition, at least one of the switches comprises a bridge on board one of the base part - control part assembly and two on-board contacts on the other of the base part - control part assembly, the contacts being arranged to be connected / disconnected by the bridge, which, in conjunction with the series connection, eliminates at least one connection to be made by the assembly operator (since by construction, the circuit has switches in series).
[0007] Avantageusement, le circuit électrique de détection peut comprendre trois interrupteurs. La détection est efficace, car trois interrupteurs répartis sur le volant permettent de détecter tout mouvement de la pièce de commande, et en raison de l'architecture en série, le nombre de branchements à effectuer par l'opérateur de montage n'est pas augmenté, à savoir, uniquement deux bornes de connexions sont nécessaires. Advantageously, the electrical detection circuit can include three switches. The detection is effective, because three switches distributed on the steering wheel make it possible to detect any movement of the control part, and due to the series architecture, the number of connections to be made by the assembly operator is not increased. , namely, only two terminals connections are required.
[0008] Avantageusement, chaque interrupteur peut comprendre deux contacts isolés l'un de l'autre sur l'une de l'ensemble pièce de base - pièce de commande, et un pont de contact sur l'autre de l'ensemble pièce de base - pièce de commande, le pont de contact étant agencé pour connecter les deux contacts lors de la fermeture dudit au moins un interrupteur. En conjonction avec l'architecture en série, seuls deux branchements manuels sont à prévoir avec cette mise en œuvre. [0008] Advantageously, each switch can comprise two contacts isolated from one another on one of the base part - control part assembly, and a contact bridge on the other of the control part assembly. base - control part, the contact bridge being arranged to connect the two contacts when closing said at least one switch. In conjunction with the serial architecture, only two manual connections are to be expected with this implementation.
[0009] Avantageusement, le circuit électrique de détection peut comprendre uniquement deux bornes de connexion à un réseau électrique de bord du véhicule. Autrement dit, un opérateur de fabrication n'a que deux branchements manuels à effectuer lors du montage du volant, même s'il y a plusieurs interrupteurs de détection du mouvement de la pièce de commande. [0009] Advantageously, the electrical detection circuit can only comprise two terminals for connection to an on-board electrical network of the vehicle. In other words, a manufacturing operator only has two manual connections to make when mounting the handwheel, even if there are multiple control part movement detection switches.
[0010] Avantageusement, chaque interrupteur peut présenter un contact connecté en série avec un contact d'un interrupteur adjacent du circuit de détection de commande. Advantageously, each switch can have a contact connected in series with a contact of an adjacent switch of the control detection circuit.
[0011] Selon une mise en œuvre, lesdits deux contacts isolés l'un de l'autre sont agencés sur la pièce de base, et ledit pont de contact est agencé sur la pièce de commande. Selon la mise en œuvre ci-dessus, les contacts du ou des inter rupteurs) sont solidaires de la pièce de base, et sont donc statiques par rapport à cette dernière. En conséquence, seul(s) le ou les pont(s) de contact est (sont) solidaire(s) de la pièce de commande et mobile(s). Cela minimise les vibrations et/ou mouvements des contacts et des brins ou portions de circuit qui les re lient, si bien que la fiabilité est améliorée (risques de sollicitations mécaniques, d'interférence, de frottements, de bruit... réduits). According to one implementation, said two contacts isolated from one another are arranged on the base part, and said contact bridge is arranged on the control part. According to the above implementation, the contacts of the switch (s) are integral with the base part, and are therefore static with respect to the latter. Consequently, only the contact bridge (s) is (are) integral with the control part and movable. This minimizes the vibrations and / or movements of the contacts and of the strands or portions of the circuit which connect them, so that reliability is improved (risks of mechanical stress, interference, friction, noise, etc. reduced).
[0012] Avantageusement, le circuit de détection de commande peut comprendre une branche composée de brins de circuit, avec au moins deux brins de circuit adjacents pouvant comprendre chacun à une extrémité un des contacts d'un même interrupteur, les contacts isolés l'un de l'autre pouvant être agencés en regard du pont de contact dudit interrupteur. La branche est donc un composant unique qui comprend plusieurs brins de circuits qui relient en série chaque interrupteur, et il suffit de prévoir deux bornes de connexion pour permettre deux branchements manuels. Ainsi le système est très simple à fabriquer, mais per- met de prévoir de multiples interrupteurs pour procurer une détection de commande sensible et efficace. Autrement dit, la branche en question est une por tion du circuit électrique de détection de commande et peut être définie de la manière suivante : entre deux points de connexion (ou deux nœuds) du circuit électrique, la branche comprend plusieurs conducteurs (des brins de circuit ou de conducteur) qui relient deux à deux un contact d'un interrupteur à un contact d'un autre interrupteur. Advantageously, the control detection circuit can comprise a branch composed of circuit strands, with at least two adjacent circuit strands which can each include at one end one of the contacts of the same switch, the isolated contacts one the other can be arranged opposite the contact bridge of said switch. The branch is therefore a single component which comprises several strands of circuits which connect each switch in series, and it suffices to provide two connection terminals to allow two manual connections. Thus the system is very simple to manufacture, but per- requires multiple switches to provide sensitive and efficient control sensing. In other words, the branch in question is a portion of the control detection electric circuit and can be defined as follows: between two connection points (or two nodes) of the electric circuit, the branch comprises several conductors (strands of circuit or conductor) which connect in pairs a contact of one switch to a contact of another switch.
[0013] Avantageusement la branche peut être formée d’une feuille métallique emboutie ou d’un fil métallique plié. Advantageously, the branch can be formed from a stamped metal sheet or a bent metal wire.
[0014] Avantageusement, la branche peut former un cerceau ou arceau de connexion, et le cerceau ou l’arceau de connexion peut former une pièce indépendante à fixer sur le volant. En d'autres termes, le cerceau ou l’arceau de con nexion peut embarquer tous les contacts de chacun des interrupteurs et les brins de circuit qui les relient, pour former une pièce d’un seul tenant aisée à manipuler pour les opérateurs de montage. Advantageously, the branch can form a connecting hoop or hoop, and the connecting hoop or hoop can form an independent part to be fixed on the steering wheel. In other words, the hoop or the connection hoop can embed all the contacts of each of the switches and the circuit strands which connect them, to form a single piece that is easy to handle for the assembly operators. .
[0015] Avantageusement, la branche peut comprendre un matériau isolant formant un substrat supportant les contacts isolés l'un de l'autre agencés en regard du pont de contact dudit interrupteur. Advantageously, the branch can comprise an insulating material forming a substrate supporting the contacts insulated from one another arranged opposite the contact bridge of said switch.
[0016] Avantageusement, la branche peut comprendre au moins une coque isolante partiellement surmoulée autour des contacts isolés l’un de l'autre agencés en regard du pont de contact dudit interrupteur. Advantageously, the branch can comprise at least one insulating shell partially overmolded around the contacts isolated from one another arranged opposite the contact bridge of said switch.
[0017] Avantageusement, le dispositif d'avertisseur sonore peut comprendre au moins une protubérance de référence, et la coque isolante peut comprendre des moyens de retenue ou d'emboîtement élastiques, agencés pour se fixer élastiquement sur la protubérance de référence. Selon la mise en œuvre ci- dessus, le montage est rapide et simple, car la protubérance de référence procure un indexage sur ou autour duquel l'opérateur enfile ou emboîte la coque isolante. La protubérance peut être une tête de vis, en particulier une tête de vis épaulée qui procure par ailleurs une portion de guidage de la pièce de commande. Advantageously, the audible warning device can comprise at least one reference protuberance, and the insulating shell can comprise elastic retaining or interlocking means, arranged to be fixed elastically on the reference protuberance. According to the above implementation, assembly is quick and simple, because the reference protuberance provides indexing on or around which the operator threads or fits the insulating shell. The protuberance can be a screw head, in particular a shouldered screw head which also provides a guide portion of the control part.
[0018] Selon une mise en œuvre le dispositif d'avertisseur sonore peut com prendre plusieurs protubérances de référence, et la coque isolante peut corn- prendre des moyens de retenue ou d'emboîtement élastiques, agencés pour se fixer élastiquement sur chacune des protubérances de référence, et de préférence selon une même direction de montage. [0018] According to one implementation, the audible warning device may include several reference protuberances, and the insulating shell may comprise take elastic retaining or interlocking means, arranged to be fixed elastically on each of the reference protuberances, and preferably in the same mounting direction.
[0019] Par exemple, on peut prévoir que chaque coque isolante soit en forme de C ou avec un col ouvert avec typiquement une ouverture pour s'emboîter sur chaque protubérance de référence, et l'ouverture de chaque interface de fixation est dirigée dans la même direction. Ceci permet un montage d'un seul geste, sans déformer le cerceau. For example, one can provide that each insulating shell is C-shaped or with an open neck typically with an opening to fit on each reference protuberance, and the opening of each fixing interface is directed into the same direction. This allows one-touch assembly without distorting the hoop.
[0020] Avantageusement, le dispositif d'avertisseur sonore peut comprendre au moins une unité de guidage de la pièce de commande, l'unité de guidage comprenant au moins une butée mécanique pour définir la position de repos, et: Advantageously, the audible warning device may comprise at least one unit for guiding the control part, the guiding unit comprising at least one mechanical stop to define the rest position, and:
• l'un de l'ensemble deux contacts isolés - pont de contact est embarqué sur la pièce de commande, • one of the set of two isolated contacts - contact bridge is installed on the control part,
• l'autre de l'ensemble deux contacts isolés - pont de contact est solidaire de la butée mécanique. • the other of the set of two isolated contacts - contact bridge is integral with the mechanical stop.
[0021] Avantageusement, le dispositif d'avertisseur sonore peut comprendre autant d'unités de guidage que d'interrupteurs, et pour chaque interrupteur : Advantageously, the sound warning device can include as many guide units as there are switches, and for each switch:
• l'un de l'ensemble deux contacts isolés - pont de contact est embarqué sur la pièce de commande, • one of the set of two isolated contacts - contact bridge is installed on the control part,
• l'autre de l'ensemble deux contacts isolés - pont de contact est solidaire de la butée mécanique d'une unité de guidage. • the other of the set of two isolated contacts - contact bridge is integral with the mechanical stop of a guide unit.
[0022] Le guidage de la pièce de commande est précis, puisque plusieurs unités de guidage sont prévues, et la détection de la commande est très efficace, car un interrupteur est prévu au niveau de chaque unité de guidage. The guidance of the control part is precise, since several guide units are provided, and the detection of the control is very effective, because a switch is provided at each guide unit.
[0023] Avantageusement, l'autre de l'ensemble deux contacts isolés - pont de contact solidaire de la butée mécanique peut être isolé électriquement de l'unité de guidage. Advantageously, the other of the set of two isolated contacts - contact bridge integral with the mechanical stop can be electrically isolated from the guide unit.
[0024] Un deuxième aspect de l'invention concerne un volant de véhicule comprenant un dispositif d'avertisseur sonore selon le premier aspect. A second aspect of the invention relates to a vehicle steering wheel comprising an audible warning device according to the first aspect.
[0025] Avantageusement, le volant de véhicule peut comprendre un module de sécurité fixé sur la pièce de commande. [0026] Un troisième aspect de l'invention concerne un véhicule automobile comprenant un volant de véhicule selon le deuxième aspect. Advantageously, the vehicle steering wheel can include a security module fixed to the control part. A third aspect of the invention relates to a motor vehicle comprising a vehicle steering wheel according to the second aspect.
[0027] D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit de modes de réalisation de l'invention donnés à titre d'exemples nullement limitatifs et illustrés par les dessins annexés, dans lesquels : Other characteristics and advantages of the present invention will emerge more clearly on reading the following detailed description of embodiments of the invention given by way of non-limiting examples and illustrated by the accompanying drawings, in which :
[0028] [Fig. 1] représente une vue en perspective d'une partie d'un dispositif d'avertisseur sonore, ou d'une partie d’un dispositif de commande d'avertisseur sonore, embarqué sur un volant de véhicule ; [0028] [Fig. 1] is a perspective view of part of a horn device, or part of a horn control device, mounted on a vehicle steering wheel;
[0029] [Fig. 2] représente un cerceau de connexion faisant partie du dispositif d'avertisseur sonore de la figure 1 , [0029] [Fig. 2] shows a connection hoop forming part of the horn device of FIG. 1,
[0030] [Fig. 3] représente le cerceau de connexion de la figure 2, pour montrer une interaction avec des composants de la figure 1 ; [0030] [Fig. 3] shows the connection hoop of Figure 2, to show interaction with components of Figure 1;
[0031] [Fig. 4] représente une coupe du dispositif d'avertisseur sonore de la figure 1 ; [0031] [Fig. 4] shows a section of the horn device of FIG. 1;
[0032] [Fig. 5] représente une vue en perspective d'une alternative d'une partie d'un dispositif d'avertisseur sonore, embarqué sur un volant de véhicule ; [0032] [Fig. 5] shows a perspective view of an alternative of a part of an audible warning device, mounted on a vehicle steering wheel;
[0033] [Fig. 6] représente un cerceau de connexion faisant partie du dispositif d'avertisseur sonore alternatif de la figure 5, [0033] [Fig. 6] shows a connection hoop forming part of the alternative horn device of figure 5,
[0034] [Fig. 7] représente une coupe du dispositif d'avertisseur sonore de la figure 5 ; [0034] [Fig. 7] shows a section of the horn device of FIG. 5;
[0035] Fig. 8] représente une mise en œuvre alternative du cerceau de connexion de la figure 2. [0035] FIG. 8] shows an alternative implementation of the connection hoop of Figure 2.
[0036] La figure 1 représente une vue en perspective d'une partie d'un dispositif d'avertisseur sonore comprenant trois interrupteurs 10 formés au niveau de trois unités de guidage d'une pièce de commande 25 mobile et embarquée sur un volant de véhicule comprenant notamment une armature composée d'un moyeu (formant une pièce de base 33), de branches 32 et d'une jante 31. Figure 1 shows a perspective view of part of a horn device comprising three switches 10 formed at three guide units of a control part 25 mobile and mounted on a vehicle steering wheel comprising in particular a frame composed of a hub (forming a base part 33), branches 32 and a rim 31.
[0037] La pièce de commande 25 est une platine qui reçoit typiquement un module de sécurité (un coussin gonflable ou airbag), et qui est montée mobile sur le moyeu de l'armature du volant. De manière conventionnelle, la pièce de commande 25 est mobile entre une position de repos (figure 1) et une position enfoncée; lorsque le conducteur veut actionner l'avertisseur sonore. The control part 25 is a plate which typically receives a safety module (an airbag or airbag), and which is movably mounted on the hub of the steering wheel frame. Conventionally, the part of control 25 is movable between a rest position (Figure 1) and a depressed position; when the driver wants to sound the horn.
[0038] Afin de détecter ce mouvement de commande, le dispositif d'avertisseur sonore comprend trois interrupteurs 10 normalement fermés (lorsque la pièce de commande 25 est en position de repos), et qui s'ouvrent lors du passage vers la position enfoncée. Ainsi, la détection est rapide (le changement d'état des interrupteurs 10 se produit dès que la pièce de commande 25 quitte la position de repos). In order to detect this control movement, the horn device comprises three switches 10 normally closed (when the control part 25 is in the rest position), and which open when moving to the depressed position. Thus, the detection is rapid (the change of state of the switches 10 occurs as soon as the control part 25 leaves the rest position).
[0039] Afin de limiter les opérations manuelles de branchement, il est prévu de relier les trois interrupteurs 10 en série, ce qui permet de ne prévoir que deux cosses de connexion 16 pour relier les interrupteurs 10 au reste du circuit de bord du véhicule. In order to limit manual connection operations, it is planned to connect the three switches 10 in series, which makes it possible to provide only two connection lugs 16 to connect the switches 10 to the rest of the on-board circuit of the vehicle.
[0040] Dans le détail, comme représenté figures 2 et 3, chaque interrupteur 10 comprend deux contacts 11 , isolés l'un de l'autre. De plus, il est prévu un pont de contact 12 (visible figure 3 et surtout figure 4) agencé pour relier les deux contacts 11 entre eux, lorsque l'interrupteur 10 est fermé. En conséquence, il est possible de prévoir un cerceau de connexion 15 détaillé figures 2 et 3, qui relie deux à deux les contacts 11 de deux interrupteurs 10, et qui comprend les deux seules bornes de connexion 16 à brancher manuellement lors de l'assemblage du volant de véhicule. La figure 3 montre en pointillés la silhouette du pont de contact 12 de chaque interrupteur 10, et les zones de contact électrique en hachuré, lorsque les interrupteurs 10 sont fermés (pièce de commande 25 en position de repos donc). In detail, as shown in Figures 2 and 3, each switch 10 comprises two contacts 11, isolated from one another. In addition, there is provided a contact bridge 12 (visible in FIG. 3 and especially in FIG. 4) arranged to connect the two contacts 11 together, when the switch 10 is closed. Consequently, it is possible to provide a connection hoop 15 detailed in FIGS. 2 and 3, which connects two by two the contacts 11 of two switches 10, and which comprises the only two connection terminals 16 to be connected manually during assembly. of the vehicle steering wheel. FIG. 3 shows in dotted lines the silhouette of the contact bridge 12 of each switch 10, and the areas of electrical contact in hatched lines, when the switches 10 are closed (control part 25 therefore in the rest position).
[0041] Le cerceau de connexion 15 comprend donc les contacts 11 de chaque interrupteur 10, et il est également prévu une collerette 13 au niveau des contacts 11 et bien visible figure 4 (qui représente une coupe ou niveau d'une unité de guidage de la pièce de commande 25), qui vient s'emboîter élastiquement sur la tête 21 T d'une vis de guidage 21 vissée dans le moyeu de l'armature.The connection hoop 15 therefore comprises the contacts 11 of each switch 10, and there is also provided a collar 13 at the level of the contacts 11 and clearly visible in FIG. 4 (which represents a section or level of a guide unit of the control part 25), which fits elastically on the head 21 T of a guide screw 21 screwed into the hub of the frame.
Ainsi la fixation du cerceau de connexion 15 est aisée sur le volant. Thus the fixing of the connection hoop 15 is easy on the steering wheel.
[0042] On peut noter au surplus que le cerceau de connexion est monté fixe sur le moyeu, il ne bouge donc pas lors des commandes d'avertisseur sonore, et il est moins exposé aux vibrations, ce qui limite les sollicitations mécaniques / vibratoire et les risques de bruit. La durée de vie est améliorée. En consé- quence, seuls les ponts de contact 12 sont mobiles dans cette mise en œuvre, et aucun câble électrique n’est donc mobile, ce qui d'une manière générale améliore la fiabilité (réduction des risques de bruit, de frottement, de déplacement intempestif...). It can also be noted that the connection hoop is fixedly mounted on the hub, it therefore does not move during the horn controls, and it is less exposed to vibrations, which limits the mechanical / vibratory stresses and noise risks. The service life is improved. As a result Quence, only the contact bridges 12 are movable in this implementation, and no electric cable is therefore movable, which generally improves reliability (reduction of the risks of noise, friction, unwanted displacement. ..).
[0043] Par ailleurs, la figure 4 montre le détail de constructions des unités de guidage de la pièce de commande 25 qui est mobile. Autour de la vis de gui dage 21 épaulée, il est prévu un ressort de rappel 23, un coulisseau 22, et un amortisseur 24 pour guider la pièce de commande 25. Furthermore, Figure 4 shows the detail of constructions of the guide units of the control part 25 which is movable. Around the shouldered guide screw 21, there is provided a return spring 23, a slide 22, and a damper 24 to guide the control part 25.
[0044] De retour à la figure 1 , on peut noter que trois unités de guidage sont prévues, avec à chaque fois un interrupteur 10, ce qui garantit que la détection de déplacement de la pièce de commande 25 sera immédiatement détectée, quel que soit l'endroit où pousse le conducteur, car les interrupteurs 10 sont normalement fermés et tous reliés en série : dès qu'un des interrupteurs 10 s'ouvre, tout le circuit est ouvert. De plus, il n'y a que deux bornes de connexion 16 à brancher manuellement lors du montage du volant représenté. Returning to Figure 1, it can be noted that three guide units are provided, each time with a switch 10, which ensures that the detection of movement of the control part 25 will be immediately detected, regardless the place where the driver pushes, because the switches 10 are normally closed and all connected in series: as soon as one of the switches 10 opens, the entire circuit is open. In addition, there are only two connection terminals 16 to be connected manually when mounting the steering wheel shown.
[0045] La figure 8 montre une alternative de réalisation du cerceau 15 de la fi gure 2. En effet, le cerceau 215 de la figure 8 peut tout à fait remplacer le cerceau 15 de la figure 2 dans le montage de la figure 1 ou 4. La différence à noter se situe au niveau des coques qui surmoulent les contacts de chaque interrupteur. Figure 8 shows an alternative embodiment of the hoop 15 of Figure 2. Indeed, the hoop 215 of Figure 8 can quite replace the hoop 15 of Figure 2 in the assembly of Figure 1 or 4. The difference to note is at the level of the shells which overmold the contacts of each switch.
[0046] En effet, chaque coque est en forme de C (comme sur la figure 2), mais ici figure 8, les ouvertures de chaque C sont orientées toutes dans une même direction de montage Dm. Un montage simplifié est alors possible. On peut fixer le cerceau 215 sur les vis épaulées selon un seul mouvement dans la direction de montage Dm. Indeed, each shell is C-shaped (as in Figure 2), but here Figure 8, the openings of each C are all oriented in the same mounting direction Dm. Simplified assembly is then possible. The hoop 215 can be fixed on the shoulder screws in a single movement in the mounting direction Dm.
[0047] On peut aussi prévoir de monter toutes les vis de guidage 21 épaulées et la pièce de commande 25 sur la pièce de base 33 pour ensuite fixer le cerceau 215 et le connecter via les bornes de connexion 216. Dans l'exemple représenté, la direction de montage Dm est contenue dans un plan perpendiculaire aux vis de guidage 21 épaulées, mais on peut prévoir d'autres orientations et directions de montage. One can also provide to mount all the guide screws 21 shouldered and the control part 25 on the base part 33 to then fix the hoop 215 and connect it via the connection terminals 216. In the example shown, the mounting direction Dm is contained in a plane perpendicular to the stepped guide screws 21, but other orientations and mounting directions can be provided.
[0048] Il est à noter que les contacts 11 du cerceau 215 ne sont pas visibles sur la figure 8, car ils sont agencés au niveau de la surface inférieure des coques ou surmoulages isolants, qui est cachée sur cette figure 8. It should be noted that the contacts 11 of the hoop 215 are not visible on FIG. 8, because they are arranged at the level of the lower surface of the insulating shells or overmoldings, which is hidden in this FIG. 8.
[0049] Les figures 5, 6 et 7 représentent une alternative de réalisation. Une pièce de commande 125 est montée mobile sur trois unités de guidage qui por tent chacune un interrupteur 110. Figures 5, 6 and 7 show an alternative embodiment. A control part 125 is movably mounted on three guide units which each carry a switch 110.
[0050] Comme montré figure 7, chaque unité de guidage est ici composée d'une vis de guidage 121 , qui forme une glissière pour la pièce de commande 125, et un ressort 123 est monté entre le moyeu (la pièce de base 133) et la pièce de commande 125 pour le repousser en position de repos (vers le haut, comme représenté en figure 7). As shown in Figure 7, each guide unit is here composed of a guide screw 121, which forms a slide for the control part 125, and a spring 123 is mounted between the hub (the base part 133) and the control part 125 to push it back into the rest position (upwards, as shown in FIG. 7).
[0051] De plus, chaque interrupteur 110 comprend un contact fixe 111 solidaire d'une tête 121 T d'une vis de guidage 121 et un contact mobile 112 solidaire de la pièce de commande 125. Un cerceau de connexion 115 visible figure 6 relie en série les contacts fixes 111, ce qui permet de ne prévoir qu'une seule borne de connexion 116 pour les trois contacts fixes 111. Par ailleurs, figure 4 et 7, on peut voir que chaque contact mobile présente une borne de connexion 116. Au total dans ce mode de réalisation, quatre bornes de connexion 116 sont à brancher manuellement (au lieu de six si chaque interrupteur présentait deux bornes de connexion, comme connu dans l'art antérieur). In addition, each switch 110 comprises a fixed contact 111 integral with a head 121 T of a guide screw 121 and a movable contact 112 integral with the control part 125. A connection hoop 115 visible in FIG. 6 connects the fixed contacts 111 in series, which makes it possible to provide only one connection terminal 116 for the three fixed contacts 111. Moreover, in FIGS. 4 and 7, it can be seen that each movable contact has a connection terminal 116. In total in this embodiment, four connection terminals 116 are to be connected manually (instead of six if each switch had two connection terminals, as known in the prior art).
[0052] On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées aux différents modes de réali sation de l’invention décrits dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées. It will be understood that various modifications and / or improvements obvious to a person skilled in the art can be made to the various embodiments of the invention described in the present description without departing from the scope of the invention defined by the appended claims. .

Claims

Revendications Claims
[Revendication 1] Dispositif d'avertisseur sonore de véhicule automobile, comprenant : [Claim 1] A motor vehicle horn device, comprising:
• une pièce de base (33), • a base part (33),
• une pièce de commande (25), mobile par rapport à la pièce de base (33), entre une position de repos et une position enfoncée, • a control part (25), movable relative to the base part (33), between a rest position and a depressed position,
• un circuit électrique de détection de commande avec au moins deux interrupteurs (10), chaque interrupteur (10) étant agencé pour changer d'état lors du passage de la pièce de commande (25) de la position de repos vers la position enfoncée, dans lequel les interrupteurs (10) sont des interrupteurs (10) normalement fermés lorsque la pièce de commande (25) est en position de repos, caractérisé: • an electric control detection circuit with at least two switches (10), each switch (10) being arranged to change state during the passage of the control part (25) from the rest position to the depressed position, in which the switches (10) are switches (10) normally closed when the control part (25) is in the rest position, characterized:
- en ce que les deux interrupteurs (10) sont montés en série, - in that the two switches (10) are connected in series,
- en ce qu'au moins un des interrupteurs (10) comprend deux contacts (11) isolés l'un de l'autre et agencés sur l'une de l'ensemble pièce de base (33) - pièce de commande (25), et un pont de contact (12) agencé sur l'autre de l'ensemble pièce de base (33) - pièce de commande (25), le pont de contact (12) étant agencé pour connecter les deux contacts (11) lors de la fermeture dudit au moins un interrupteur (10). - in that at least one of the switches (10) comprises two contacts (11) isolated from one another and arranged on one of the base part (33) - control part (25) assembly , and a contact bridge (12) arranged on the other of the base piece (33) - control piece (25) assembly, the contact bridge (12) being arranged to connect the two contacts (11) during closing of said at least one switch (10).
[Revendication 2] Dispositif d'avertisseur sonore selon la revendication 1 , dans lequel le circuit électrique de détection comprend trois interrupteurs (10). [Claim 2] An audible warning device according to claim 1, wherein the electrical detection circuit comprises three switches (10).
[Revendication 3] Dispositif d'avertisseur sonore selon l'une des revendications 1 à 2, dans lequel chaque interrupteur (10) comprend deux contacts (11) isolés l'un de l'autre sur l'une de l'ensemble pièce de base (33) - pièce de commande (25), et un pont de contact (12) sur l'autre de l'ensemble pièce de base (33) - pièce de commande (25), le pont de contact (12) étant agencé pour connecter les deux contacts (11) lors de la fermeture dudit au moins un interrupteur (10). [Claim 3] An audible warning device according to one of claims 1 to 2, wherein each switch (10) comprises two contacts (11) isolated from each other on one of the part assembly. base (33) - control part (25), and a contact bridge (12) on the other of the base part (33) - control part (25) assembly, the contact bridge (12) being arranged to connect the two contacts (11) when closing said at least one switch (10).
[Revendication 4] Dispositif d'avertisseur sonore selon la revendication 3, dans lequel chaque interrupteur (10) présente un contact connecté en série avec un contact d'un interrupteur (10) adjacent du circuit de détection de commande. [Claim 4] A horn device according to claim 3, wherein each switch (10) has a contact connected in series with a contact of a switch (10) adjacent to the control detection circuit.
[Revendication 5] Dispositif d'avertisseur sonore selon la revendication 4, dans lequel le circuit de détection de commande comprend une branche composée de brins de circuit, avec au moins deux brins de circuit adjacents comprenant chacun à une extrémité un des contacts (11 ) d'un même interrupteur, les contacts (11) isolés l'un de l'autre étant agencés en regard du pont de contact (12) dudit interrupteur (10). [Claim 5] A horn device according to claim 4, wherein the control detection circuit comprises a branch composed of circuit strands, with at least two adjacent circuit strands each comprising at one end one of the contacts (11). of the same switch, the contacts (11) isolated from one another being arranged opposite the contact bridge (12) of said switch (10).
[Revendication 6] Dispositif d'avertisseur sonore selon la revendication 5, dans lequel la branche comprend un matériau isolant formant un substrat supportant les contacts (11) isolés l'un de l'autre et agencés en regard du pont de contact (12) dudit interrupteur (10). [Claim 6] An audible warning device according to claim 5, in which the branch comprises an insulating material forming a substrate supporting the contacts (11) isolated from one another and arranged opposite the contact bridge (12) of said switch (10).
[Revendication 7] Dispositif d'avertisseur sonore selon l'une des revendications 5 à 6, dans lequel la branche comprend au moins une coque isolante partiellement surmoulée autour des contacts (11) isolés l'un de l'autre et agencés en regard du pont de contact (12) dudit interrupteur (10). [Claim 7] Audible warning device according to one of claims 5 to 6, wherein the branch comprises at least one insulating shell partially overmolded around the contacts (11) isolated from one another and arranged opposite the contact bridge (12) of said switch (10).
[Revendication 8] Dispositif d'avertisseur sonore selon la revendication 7, comprenant au moins une protubérance de référence, et dans lequel la coque isolante comprend des moyens de retenue ou d'emboîtement élastiques, agencés pour se fixer élastiquement sur la protubérance de référence. [Claim 8] A horn device according to claim 7, comprising at least one reference protrusion, and in which the insulating shell comprises elastic retaining or interlocking means, arranged to be resiliently fixed on the reference protuberance.
[Revendication 9] Dispositif d'avertisseur sonore l'une des revendications 1 à 8, comprenant au moins une unité de guidage de la pièce de commande (25), l'unité de guidage comprenant au moins une butée mécanique pour définir la position de repos, et dans lequel : [Claim 9] Audible warning device according to one of claims 1 to 8, comprising at least one guide unit for the control part (25), the guide unit comprising at least one mechanical stop for defining the position of rest, and in which:
• l'un de l'ensemble deux contacts isolés (11) - pont de contact (12) est embarqué sur la pièce de commande (25), • one of the set of two isolated contacts (11) - contact bridge (12) is mounted on the control part (25),
• l'autre de l'ensemble deux contacts isolés (11) - pont de contact (12) est solidaire de la butée mécanique. • the other of the set of two isolated contacts (11) - contact bridge (12) is integral with the mechanical stop.
[Revendication 10] Dispositif d'avertisseur sonore selon la revendication 9, comprenant autant d'unités de guidage que d'interrupteurs (10), et dans lequel, pour chaque interrupteur (10) : [Claim 10] An audible warning device according to claim 9, comprising as many guide units as there are switches (10), and in which, for each switch (10):
• l'un de l'ensemble deux contacts isolés (11) - pont de contact (12) est embarqué sur la pièce de commande (25), * l'autre de l'ensemble deux contacts isolés (11) - pont de contact (12) est solidaire de la butée mécanique d'une unité de guidage. • one of the set of two isolated contacts (11) - contact bridge (12) is mounted on the control part (25), * the other of the set of two isolated contacts (11) - contact bridge (12) is integral with the mechanical stop of a guide unit.
[Revendication 11] Dispositif d'avertisseur sonore selon l'une des revendications 9 ou 10, dans lequel l'autre de l'ensemble deux contacts isolés (11) - pont de contact (12) solidaire de la butée mécanique est isolé électriquement de l'unité de guidage. [Claim 11] Audible warning device according to one of claims 9 or 10, wherein the other of the set of two isolated contacts (11) - contact bridge (12) integral with the mechanical stop is electrically isolated from the guide unit.
[Revendication 12] Volant de véhicule comprenant un dispositif d'avertisseur sonore selon l'une des revendications 1 à 11. [Claim 12] A vehicle steering wheel comprising an audible warning device according to one of claims 1 to 11.
[Revendication 13] Volant de véhicule selon la revendication 12, comprenant un module de sécurité fixé sur la pièce de commande (25). [Claim 13] A vehicle steering wheel according to claim 12, comprising a safety module fixed to the control part (25).
[Revendication 14] Véhicule automobile comprenant un volant de véhicule selon l'une des revendications 12 ou 13. [Claim 14] A motor vehicle comprising a vehicle steering wheel according to one of claims 12 or 13.
EP20789978.2A 2019-10-18 2020-10-13 Vehicle steering wheel horn device Active EP4045360B1 (en)

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FR1911724A FR3102115B1 (en) 2019-10-18 2019-10-18 Vehicle steering wheel horn device
PCT/EP2020/078691 WO2021074103A1 (en) 2019-10-18 2020-10-13 Acoustic warning device for a vehicle steering wheel

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FR3063942B1 (en) 2017-03-14 2021-12-10 Autoliv Dev VEHICLE AUDIBLE WARNING CONTROL DEVICE
JP6447671B2 (en) * 2017-06-22 2019-01-09 豊田合成株式会社 Steering wheel
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FR3102115A1 (en) 2021-04-23
EP4045360B1 (en) 2024-05-29
JP7441307B2 (en) 2024-02-29
WO2021074103A1 (en) 2021-04-22
FR3102115B1 (en) 2022-09-16
US20240101027A1 (en) 2024-03-28

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